OS/2, eCS & ArcaOS - Technical > Networking

Simple scanner for IP addresses on local network

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ivan:
Hi All,

A friend asked me if there was an OS/2 equivalent to the windows Netscan by SoftPerfect.  That is a GUI in which you put the start  and end IP addresses hit start scan and it scans the network and lists all IP and MAC addresses it finds along with a lot of other information if you want it.  He uses this at the moment on a win XP VM under VirtualPC for OS/2 but would like something that gives the information without having to start the VM. 

Netscan does not run under Odin, even when you copy over the missing DLLs from win XP. 

Is there such a program for OS/2 or could something be cobbled together using some scripts?

David McKenna:
 General Network Utilities http://en.ecomstation.ru/projects/gnu/ has an ARPScan function that does what you describe.

Andi B.:
Have you tried LanScan? I've it on my disk but the link mentioned in the inf http://ecomstation.ru/lanscan/ does not work anymore.

A very simple IP scanner is f.i. ping 192.168.1.255 :) But especially Win machines do not respond some times.

ivan:
Thanks David but since there appears to be no way of downloading anything to see if it does what he wants I can't say that it would do the job.  We use ARP to check what has used our servers but all it does is read the local arp table , it does not scan the network for IPs out there that have not 'called in'.

Andi, I think they have rolled that into the GNU that David mentioned.  Ping does assume you know the IP address before you can use it - if that is unknown then you can't.

The reason my friend is looking for an OS/2 replacement for Netscan is that he uses it to check if and when those renting his holiday apartments are on the network - those he has given access codes to are no problem it is those that try and hack the system he is concerned about.  With Netscan giving the MAC address he is able to block those non authorised users (he had one guy a couple of years ago that brought the network to it's knees by downloading so many torrents at once that no one else could get on to the internet).

Andi B.:

--- Quote ---Ping does assume you know the IP address before you can use it - if that is unknown then you can't.
--- End quote ---
Not if you use the broadcast address. AFAIR .255 is broadcast. My machines all answers on such a ping. .0 seems to work similar.

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